Hi,
Since I upgraded the phone to Moto E2, I need Bluetooth Phonebook App to synchronize my contacts with car rsap system.
It works almost good - the problem is with range of contacts - only contacts with groups defined are transferred.
In my case, only 30% of my contacts belongs to groups.
I know, I can assign all other contacts to new group, but that's not solution.
Is there a fix for that?

A quick check on my tablet showed that all contacts are in a group "My Contacts". I never created this group and never added a contact to it. Maybe you sync your contacts with some other source than Google? There may be a setting to add all synced contacts to a default group.

Export local phone contacts to google account, then synchronize to phone and still no default contact groups (My contacts).
Strange.
But, new contact added from the phone, in default, not belongs to any of group (when viewed on phone)....
Anyway, something is wrong with the groups management in lately Android versions (e.g unable to define ringtone to group).

Was there a solution to this? I have a new Moto G4 and trying to connect to an Audi A3.

Out of the box i get 190 contacts downloaded. With rSAP i get 205. It does look like the only ones coming down are the ones in groups and not the majority which are groupless. My contacts are all on my work exchange and not in Google or any other program.

I'm having the same problem. The only contacts that sync are in the Coworkers, Family, and Friends groups. I'm not able to sync any contacts that aren't in a group. I'm also not able to find the option to hide visibility.